Sun room awning or the like

ABSTRACT

In a sun room awning, comprising a rotating-drivable roll bar with an awning cloth, lateral guide rails for the awning cloth, and tensioning straps as well as tautening means for the awning cloth that engage at the front end of the awning cloth or at a drop-out rail, it is provided that the tensioning straps are designed elastic in the longitudinal direction, at least in sections, to exert tension onto the awning cloth in order to achieve a construction ensuring a taut, visually attractive fit regardless of the extended position of the awning cloth.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention is directed to a sun room awning or the like, comprising a rotating-drivable roll bar with an awning cloth, lateral guide rails for the awning cloth, and tensioning straps as well as tautening means for the awning cloth that engage at the front end of the awning cloth or at a drop-out rail.

[0003] 2. Background Art

[0004] The winding diameter of the tensioning straps is larger when the awning is wound up than when the awning is unwound, just like the cloth roll itself. To compensate for the different paths of travel that result from the different winding diameters, tightening elements are commonly used that incorporate spring elements. Spring elements of this type make the assembly rather complex and increase the manufacturing costs.

[0005] To remedy this situation, provision is made according to DE 100 33 419 to transport the awning cloth in its direction of extension along inherently stiff push straps.

SUMMARY OF THE INVENTION

[0006] The present invention has as its object to make possible a design without tightening elements while continuing the use of tensioning straps, that ensures a taut, visually attractive fit regardless of the extended position of the awning cloth.

[0007] This object is met according to the invention in such a way that the tensioning straps are designed elastic in the longitudinal direction at least in sections to exert a tension onto the awning cloth. Provision may advantageously be made for the tensioning straps to be installed pretensioned so that a tension effect is exerted onto the awning cloth at all times.

[0008] The inventive solution eliminates the need for additional tightening elements because the tensioning straps are designed springy elastic in themselves along the entire length or along sections thereof.

[0009] The tensioning straps may also be composed of a fabric, knitted material, or weave, which behaves elastically only to a certain stretching point and is essentially inelastic after this stretching point has been exceeded. The awning in its extended position can thus be pulled out stiffly due to the blocking of the gear or motor, and the result is a cloth that, when stressed by winds or other stresses, is very taut.

[0010] The invention will be explained in more detail below, based on a preferred embodiment in combination with the drawing.

BRIEF DESCRIPTION OF THE DRAWINGS

[0011]FIG. 1 shows a schematic side view of a sun room awning in its retracted position,

[0012]FIG. 2 shows an illustration according to FIG. 1 in the extended position,

[0013]FIG. 3 shows a schematic top view of the sun room awning it its extended position, and

[0014]FIG. 4 shows a schematic section through the lateral guide region of the drop-out rail.

DESCRIPTION OF THE PREFERRED EMBODIMENT

[0015] A sun room awning shown in the drawing comprises a rotating-drivable roll bar 1 with an awning cloth roll 2, which is rotating-drivable in the direction of the double arrow 3, namely for retraction in the direction of the upper partial arrow in FIG. 1 and FIG. 2, respectively, and for retraction in the direction of the lower partial arrow in FIG. 1 and FIG. 2, respectively.

[0016] The front end 4 of the awning cloth 5 is fixed in a piping groove 6 of a drop-out rail 7, which is guided via a lateral slider 8 on each side inside lateral guide rails 9.

[0017] An elastic tensioning strap 10 engages on each slider 8, and this tensioning strap 10 is deflected in the region of the outer end of the guide rail 9 by means of a deflection roller 11 by 180° and connected to the slider 8 and drop-out rail 7 by means of a piping 12. In the region of the inner end of the guide rail 9 a second 90° deflection roller 13 is provided, whereby the tensioning strap 10 is guided onto deflection and winding rollers 14 that are disposed laterally on the roll bar and to which the inner end of the tensioning straps is firmly connected, so that when the roll bar 1 is rotated in the direction of extension, tension is exerted by the tensions strap 10 onto the sliders 8 and thus onto the drop-out rail 7 and, hence, onto the awning cloth 5.

[0018] The elastic tensioning straps 10 are installed pretensioned so that a tensile stress is exerted onto the awning cloth 5 at all times and the same is held accordingly taut. 

What is claimed is
 1. A sun room awning or the like, comprising a rotating-drivable roll bar with an awning cloth, lateral guide rails for the awning cloth, and tensioning straps as well as tautening means for the awning cloth that engage at the front end of the awning cloth or at a drop-out rail, wherein the tensioning straps (1) are designed elastic in the longitudinal direction, at least in sections, to exert tension onto the awning cloth (5).
 2. An awning according to claim 1, wherein the tensioning straps (10) are installed pretensioned.
 3. An awning according to claim 1, wherein the tensioning straps (10) behave elastically up to a certain stretching point and are essentially inelastic after this stretching point has been exceeded. 